| paul@0 | 1 | /* |
| paul@0 | 2 | * JZ4780 CPM server. |
| paul@0 | 3 | * |
| paul@113 | 4 | * Copyright (C) 2018, 2020 Paul Boddie <paul@boddie.org.uk> |
| paul@0 | 5 | * |
| paul@0 | 6 | * This program is free software; you can redistribute it and/or |
| paul@0 | 7 | * modify it under the terms of the GNU General Public License as |
| paul@0 | 8 | * published by the Free Software Foundation; either version 2 of |
| paul@0 | 9 | * the License, or (at your option) any later version. |
| paul@0 | 10 | * |
| paul@0 | 11 | * This program is distributed in the hope that it will be useful, |
| paul@0 | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| paul@0 | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| paul@0 | 14 | * GNU General Public License for more details. |
| paul@0 | 15 | * |
| paul@0 | 16 | * You should have received a copy of the GNU General Public License |
| paul@0 | 17 | * along with this program; if not, write to the Free Software |
| paul@0 | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| paul@0 | 19 | * Boston, MA 02110-1301, USA |
| paul@0 | 20 | */ |
| paul@0 | 21 | |
| paul@0 | 22 | #include <l4/devices/cpm-jz4780.h> |
| paul@0 | 23 | #include <l4/devices/memory.h> |
| paul@113 | 24 | |
| paul@113 | 25 | #include <l4/re/env.h> |
| paul@0 | 26 | |
| paul@113 | 27 | #include <ipc/server.h> |
| paul@113 | 28 | #include "cpm_server.h" |
| paul@0 | 29 | |
| paul@0 | 30 | // Virtual addresses for the CPM and LCD register blocks. |
| paul@0 | 31 | |
| paul@0 | 32 | static l4_addr_t cpm_virt_base = 0, cpm_virt_base_end = 0; |
| paul@0 | 33 | |
| paul@0 | 34 | |
| paul@0 | 35 | |
| paul@0 | 36 | // Access to peripheral memory. |
| paul@0 | 37 | |
| paul@0 | 38 | static int setup_memory() |
| paul@0 | 39 | { |
| paul@0 | 40 | if (get_memory("jz4780-cpm", &cpm_virt_base, &cpm_virt_base_end)) |
| paul@0 | 41 | return 1; |
| paul@0 | 42 | |
| paul@0 | 43 | return 0; |
| paul@0 | 44 | } |
| paul@0 | 45 | |
| paul@0 | 46 | |
| paul@0 | 47 | |
| paul@113 | 48 | /* CPM server. */ |
| paul@113 | 49 | |
| paul@113 | 50 | class server_CPM : public CPM |
| paul@113 | 51 | { |
| paul@113 | 52 | Cpm_jz4780_chip *_chip; |
| paul@113 | 53 | |
| paul@113 | 54 | public: |
| paul@113 | 55 | explicit server_CPM(Cpm_jz4780_chip *chip) |
| paul@113 | 56 | : _chip(chip) |
| paul@113 | 57 | { |
| paul@113 | 58 | } |
| paul@113 | 59 | |
| paul@113 | 60 | long get_lcd_pixel_frequency(uint8_t controller, uint32_t *frequency) |
| paul@113 | 61 | { |
| paul@113 | 62 | *frequency = _chip->get_lcd_pixel_frequency(controller); |
| paul@113 | 63 | return L4_EOK; |
| paul@113 | 64 | } |
| paul@113 | 65 | |
| paul@113 | 66 | long set_hdmi_frequency(uint32_t frequency) |
| paul@113 | 67 | { |
| paul@113 | 68 | _chip->set_hdmi_frequency(frequency); |
| paul@113 | 69 | return L4_EOK; |
| paul@113 | 70 | } |
| paul@113 | 71 | |
| paul@113 | 72 | long set_lcd_frequencies(uint32_t pclk, uint8_t multiplier) |
| paul@113 | 73 | { |
| paul@113 | 74 | _chip->set_lcd_frequencies(pclk, multiplier); |
| paul@113 | 75 | return L4_EOK; |
| paul@113 | 76 | } |
| paul@113 | 77 | |
| paul@113 | 78 | long start_hdmi() |
| paul@113 | 79 | { |
| paul@113 | 80 | _chip->start_hdmi(); |
| paul@113 | 81 | return L4_EOK; |
| paul@113 | 82 | } |
| paul@113 | 83 | |
| paul@113 | 84 | long stop_hdmi() |
| paul@113 | 85 | { |
| paul@113 | 86 | _chip->stop_hdmi(); |
| paul@113 | 87 | return L4_EOK; |
| paul@113 | 88 | } |
| paul@113 | 89 | |
| paul@113 | 90 | long start_lcd() |
| paul@113 | 91 | { |
| paul@113 | 92 | _chip->start_lcd(); |
| paul@113 | 93 | return L4_EOK; |
| paul@113 | 94 | } |
| paul@113 | 95 | |
| paul@113 | 96 | long stop_lcd() |
| paul@113 | 97 | { |
| paul@113 | 98 | _chip->stop_lcd(); |
| paul@113 | 99 | return L4_EOK; |
| paul@113 | 100 | } |
| paul@113 | 101 | |
| paul@113 | 102 | long update_output_frequency() |
| paul@113 | 103 | { |
| paul@113 | 104 | _chip->update_output_frequency(); |
| paul@113 | 105 | return L4_EOK; |
| paul@113 | 106 | } |
| paul@113 | 107 | }; |
| paul@0 | 108 | |
| paul@0 | 109 | |
| paul@0 | 110 | |
| paul@0 | 111 | /* Main program. */ |
| paul@0 | 112 | |
| paul@0 | 113 | int main(void) |
| paul@0 | 114 | { |
| paul@0 | 115 | if (setup_memory()) return 1; |
| paul@0 | 116 | |
| paul@0 | 117 | /* Initialise the CPM abstraction. */ |
| paul@0 | 118 | |
| paul@0 | 119 | Cpm_jz4780_chip cpm_device(cpm_virt_base, 48000000, 32768); |
| paul@0 | 120 | |
| paul@0 | 121 | /* Initialise and register a server object. */ |
| paul@0 | 122 | |
| paul@113 | 123 | server_CPM obj(&cpm_device); |
| paul@113 | 124 | l4_cap_idx_t server; |
| paul@113 | 125 | |
| paul@113 | 126 | if (ipc_server_bind("cpm", (l4_umword_t) &obj, &server)) return 1; |
| paul@0 | 127 | |
| paul@0 | 128 | /* Enter the IPC server loop. */ |
| paul@0 | 129 | |
| paul@113 | 130 | ipc_server_loop(CPM_expected_items, &obj, |
| paul@113 | 131 | (ipc_server_handler_type) handle_CPM); |
| paul@0 | 132 | return 0; |
| paul@0 | 133 | } |
